Pressure actuated sealant assembly

ABSTRACT

An enclosure includes a housing and a sealing unit that fits within a sealing unit opening of the housing. The sealing unit provides a seal around cable ports and provides a peripheral seal between the housing and the sealing unit. The sealing unit can include a sealant arrangement and an actuation arrangement for pressurizing the sealant arrangement within the sealing unit opening. The actuation arrangement can include inner and outer pressurization structures between which the sealant arrangement is positioned. The actuation arrangement includes first and second actuators each movable between a non-actuated position and an actuated position. When the first and second actuators are moved towards the actuated positions, the first and second actuators generate first and second seal pressurization forces that press the sealant arrangement between the first and second pressurization structures, and the first and second seal pressurization forces are transferred through respective first and second springs.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of U.S. application Ser. No.14/412,377, filed on 31 Dec. 2014, now issued as U.S. Pat. No. 9,400,363on Jul. 26, 2016, which is a National Stage Application ofPCT/EP2013/063497, filed 27 Jun. 2013, which claims benefit of U.S.Application No. 61/667,243, filed on 2 Jul. 2012 and 61/667,290, filedon 2 Jul. 2012 and which applications are incorporated herein byreference. To the extent appropriate, a claim of priority is made toeach of the above disclosed applications.

TECHNICAL FIELD

The present disclosure relates generally to techniques for sealing cableentry points of enclosures within telecommunications systems.

BACKGROUND

Telecommunications systems typically employ a network oftelecommunications cables capable of transmitting large volumes of dataand voice signals over relatively long distances. The telecommunicationscables can include fiber optic cables, electrical cables, orcombinations of electrical and fiber optic cables. A typicaltelecommunications network also includes a plurality oftelecommunications enclosures integrated throughout the network oftelecommunications cables. The telecommunications enclosures are adaptedto house and protect telecommunications components such as splices,termination panels, power splitters and wavelength divisionmultiplexers. It is often preferred for the telecommunicationsenclosures to be re-enterable. The term “re-enterable” means that thetelecommunications enclosures can be reopened to allow access to thetelecommunications components housed therein without requiring theremoval and destruction of the telecommunications enclosures. Forexample, certain telecommunications enclosures can include separateaccess panels that can be opened to access the interiors of theenclosures, and then closed to re-seal the enclosures. Othertelecommunications enclosures take the form of elongated sleeves formedby wrap-around covers or half-shells having longitudinal edges that arejoined by clamps or other retainers. Still other telecommunicationsenclosures include two half-pieces that are joined together throughclamps, wedges or other structures. Telecommunications enclosures aretypically sealed to inhibit the intrusion of moisture or othercontaminants. Pressurized gel-type seals have been used to effectivelyseal the locations where telecommunications cables enter and exittelecommunications enclosures. Example pressurized gel-type seals aredisclosed by document EP 0442941 B1 and document EP 0587616 B1. Both ofthese documents disclose gel-type cable seals that are pressurizedthrough the use of threaded actuators. Document U.S. Pat. No. 6,046,406discloses a cable seal that is pressurized through the use of anactuator including a cam lever. While pressurized cable seals havegenerally proven to be effective, improvements in this area are stillneeded.

SUMMARY

The present disclosure relates generally to a cable port size reduceradapted to be inserted into a cable port of a cable sealing unit forproviding a reduced port size. In certain embodiments, the cable portsize reducer can include an insert body in the form of a plug definingone or more reduced sized cable ports. The insert body can include avolume of sealant having an inner cable sealing surface defining the oneor more reduced size cable ports and a peripheral sealing surface. Incertain embodiments, the cable sealing surface has an axial length thatis longer than the peripheral sealing surface. In certain embodiments,the cable port size reducer has an insert body with a compositeconstruction having a volume of sealant at least partially containedbetween first and second containment layers that form axial end caps ofthe insert body. In certain embodiments, the cable port size reducer canbe inserted within a man cable port of a pressure actuated main sealantassembly, and the volume of sealant of the cable port size reducer ispressurized by the same actuator arrangement used to pressurize the mainsealant assembly.

Aspects of the present disclosure allow a pressure actuated sealantassembly to be readily adapted in the field or at the factory so as toaccommodate cables of different numbers and sizes. In certainembodiments, the design is cost effective and efficient since the cableport size reducer does not need to use an additional actuator to bepressurized, but instead can be incorporated into an existing sealantarrangement and can be pressurized using the same actuator used topressurize the existing sealant arrangement. In certain embodiments, thecable port size reducer can have a longer axial cable gelbonding/sealing length inside the cable port size reducer as compared toan axial bonding/sealing length at a periphery of the cable port sizereducer. This is advantageous because cables often have scratches orinconsistencies at their outer surfaces caused by manipulation andhandling during installation. Thus, the longer gel sealing length at thecable to insert interface helps insure that an adequate seal is providedaround the cable. The periphery of the cable port size reducer typicallywill contact gel of the main sealant assembly and therefore can providean adequate seal with a shorter gel sealing length than the length ofgel sealing surface required to insure an adequate seal about a cable.By varying the lengths of the inside and outside sealing surfaces of thecable port reducing insert, the overall amount of sealant utilized inthe insert can be conserved and insert can have a compact, costeffective design.

A variety of additional inventive aspects will be set forth in thedescription that follows. The inventive aspects can relate to individualfeatures and to combinations of features. It is to be understood thatboth the foregoing general description and the following detaileddescription are exemplary and explanatory only and are not restrictiveof the broad inventions and inventive concepts upon which theembodiments disclosed herein are based.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a telecommunications enclosure inaccordance with the principles of the present disclosure, an actuationarrangement of a sealing unit of the enclosure is shown in anon-actuated position;

FIG. 2 shows the telecommunications enclosure of FIG. 1 with theactuation arrangement in an actuated position;

FIG. 3 shows the sealing unit of the enclosure of FIG. 1 isolated fromthe remainder of the enclosure, the actuation arrangement of the sealingunit is shown in the non-actuated position;

FIG. 4 shows the sealing unit of FIG. 3 with the actuation arrangementin the actuated position;

FIG. 5 is an end view of the sealing unit of FIGS. 3 and 4;

FIG. 6 is a cross-sectional view taken along section line 6-6 of FIG. 5;

FIG. 6A is a detailed view of a portion of FIG. 6;

FIG. 7 is a cross-sectional view taken along section line 7-7 of FIG. 5;

FIG. 8 is a cross-sectional view taken along section line 8-8 of FIG. 4;

FIG. 9 is a perspective view of a cable port size reducing insert inaccordance with the principles of the present disclosure shown in aclosed position;

FIG. 10 shows the cable port size reducing insert of FIG. 9 in apartially open position; and

FIG. 11 shows the cable port size reducing insert of FIG. 9 in an openposition.

DETAILED DESCRIPTION

FIGS. 1-8 show a telecommunications enclosure 20 in accordance with theprinciples of the present disclosure. The enclosure 20 includes ahousing 22 having an end 24 defining a sealing unit opening 26. Theenclosure 20 also includes a sealing unit 28 that fits within thesealing unit opening 26. The sealing unit 28 includes a main sealantarrangement 32 (see FIG. 8) defining a plurality of main cable ports 30.When pressurized, the sealant arrangement 32 is configured for providingseals about structures (e.g., cables, plugs, etc.) routed though themain cable ports 30 and is also configured for providing a peripheralseal between the housing 22 and the cable sealing unit 28. The enclosure20 further includes an actuation arrangement 31 for pressurizing themain sealant arrangement 32 within the sealing unit opening 26. Theactuation arrangement 31 is shown including first and second actuators35 a, 35 b that respectively include first and second lever arms 36 a,36 b. The actuators 35 a, 35 b are movable between non-actuatedpositions P1 (see FIGS. 1 and 3) and actuated positions P2 (see FIGS. 2and 4). The main sealant arrangement 32 is pressurized as the first andsecond actuators 35 a, 35 b are moved from the non-actuated position P1toward the actuated position P2. In other embodiments, actuationarrangements having only one actuator can be used. Also, in otherembodiments, actuation arrangements having alternative types ofactuators (e.g., threaded, screw type actuators) can be used.

Referring to FIG. 7, the actuation arrangement 31 includes inner andouter pressurization structures 60, 62 (e.g., plates, members, bodies,etc.). As shown at FIG. 6, a frame 190 supporting a plurality of opticalcomponents 192 (e.g., splice trays, splitter trays, etc.) is attached tothe inner pressurization structure 60 and carried with the sealing unit28. The main sealant arrangement 32 is positioned between the inner andouter pressurization structures 60, 62. The actuators 35 a, 35 b includesprings 52 a, 52 b corresponding to each of the first and second leverarms 36 a, 36 b for transferring seal pressurization forces from thefirst and second lever arms 36 a, 36 b to the sealant arrangement 32.When the first and second lever arms 36 a, 36 b are moved toward theactuated positions P2, the first and second lever arms 36 a, 36 bgenerate first and second seal pressurization forces that press thesealant arrangement 32 between the first and second pressurizationstructures 60, 62. More specifically, pressurization forces from thefirst and second lever arms 36 a, 36 b are transferred from lever camsurfaces 64 a, 64 b through the springs 52 a, 52 b and through shafts170 a, 170 b to the inner and outer pressurization structures 60, 62. Inthis way, the first and second pressurization plates 60, 62 are springbiased toward one another such that spring pressure is applied to thesealant arrangement 32 for pressurizing the sealant arrangement 32 tomaintain the seals over an extended period of time.

Referring to FIG. 8, the main sealant arrangement 32 includes multipleportions of sealant (e.g., gel blocks) that cooperate to form acollective volume of sealant that is pressurized by the actuationarrangement 31. For example, the main sealant arrangement 32 includessealant portions 32 a, 32 b and 32 c that cooperate to define the maincable ports 30. Sealant portion 32 a is shown as an upper sealant block,sealant portion 32 c is shown as a lower sealant block, and sealantportion 32 b is shown as an intermediate sealant block. In certainembodiments, the sealant portions 32 a, 32 b and 32 c are constructed ofa sealing gel. The main cable ports 30 are sized to receive and sealrelatively large telecommunication cables. When the actuationarrangement 31 is actuated, the main sealant arrangement 32 is axiallypressurized between the inner and outer pressurization structures 60,62. As the main sealant arrangement 32 is pressurized, the sealantarrangement 32 flows/deforms to fill voids within the sealing unitopening 26, to form the peripheral seal with the housing 22, and to formseals around any cables or inserts positioned within the main cableports 30.

Aspects of the present disclosure relate to techniques for allowing themain sealing arrangement to be readily reconfigured to accommodatecables of different sizes, cross-sectional shapes/profiles and numbers.For example, to allow the main cable ports 30 to accommodate smallercables, cable port size reducing structures such as cable port sizereducing inserts can be inserted in one or more of the main cable ports30. The cable port size reducing inserts can be mounted within the maincable ports 30 and captured axially between the first and secondpressurization structures 60, 62. The cable port sized reducers can eachdefine at least one reduced size cable port having a smaller dimension(e.g., diameter) that the corresponding main cable ports 30 in which thecable port size reducers are mounted. In certain embodiments, the cableport size reducers can each define multiple cable ports of reduced size.In certain embodiments, the cable port size reducers can define reducedsize cable ports having different shapes/profiles such as roundopenings, elongated openings (e.g., for flat drop cables) or othershaped openings. Referring to FIG. 8, cable port size reducingstructures in the form of cable port size reducing inserts 33 a, 33 b,33 c, 33 d, 33 e and 33 f are shown mounted within selected main cableports 30. The cable port size reducing insert 33 a defines one reducedsize cable port 37 a that is reduced in size as compared to the maincable ports 30. The cable port size reducing insert 33 b defines tworeduced size cable ports 37 b that are reduced in size as compared tothe main cable ports 30. The cable port size reducing insert 33 cdefines three reduced size cable ports 37 c that are reduced in size ascompared to the main cable ports 30. The cable port size reducing insert33 d defines four reduced size cable ports 37 d that are reduced in sizeas compared to the main cable ports 30. The cable port size reducinginsert 33 e defines six reduced size cable ports 37 e that are reducedin size as compared to the main cable ports 30. The insert 33 f is aremoveable plug used to block an unused port. In addition to the insertsspecifically depicted, it will be appreciated that inserts havingdifferent numbers of cable opening, different shapes of cable openings,and different sizes of cable openings can also be used to accommodatedifferent cable types.

Referring to FIGS. 9-11, the cable port size reducing insert 33 c isdepicted. It will be appreciated that other than the size, shape andnumber of reduced size cable ports provided, the cable port sizereducing inserts 33 a-33 f can have similar constructions. Thus, thedescription pertaining to the cable port size reducing inert 33 c isapplicable to the other cable port size reducing inserts 33 a, 33 b and33 d-33 f as well.

Referring to FIG. 10, the cable port size reducing insert 33 c includesan insert body 90 having a total axial length L1 that extends betweenfirst and second axial ends 70, 72 of the insert body 90 along a centralinsert axis 91. The insert body 90 has a composite constructionincluding a volume of sealant 74 at least partially contained axiallybetween first and second axial containment layers 76, 78. The first andsecond axial containment layers 76, 78 are respectively positionedadjacent the first and second ends 70, 72 of the insert body 90 and formaxial end caps of the insert body 90. The first and second axialcontainment layers 76, 78 are attached (e.g., bonded) to ends of thevolume of sealant 74. The first and second axial containment layers 76,78 are preferably constructed of a material that has a higher hardnessand is less flowable than the sealant material constituting the volumeof sealant 74. Thus, when the volume of sealant 74 is pressurized toprovide cable sealing, the first and second axial containment layers 76,78 assist in containing the volume of sealant 74 between the axial ends70, 72 to limit the amount of volume of sealant 74 that is forced out ofthe sealing unit 28. The volume of sealant 74 and the main sealantarrangement 32 are in fluid communication with one another and arepressurized between the first and second pressurization structures 60,62 when the actuation arrangement 31 is actuated.

The harder material of the containment layer 76, 78 does not extend thetotal axial length L of the insert body 90. Instead, only the volume ofsealant 74 of the insert body 90 is located between the containmentlayers 76, 78. Thus, the containment layers 76, 78 are carried with thevolume of sealant 74 and the containment layers 76, 78 can move axiallyrelative to one another as the volume of sealant 74 is axiallycompressed. For example, the containment layers 76, 78 can be movedaxially with the first and second pressurization structures 60, 62 toassist in providing axial pressurization of the volume of sealant 74when the actuation arrangement 31 is actuated. In certain embodiments,the insert body 90 does not have any axial reinforcing structure thatextends across the volume of sealant 74 and that interconnectscontainment layers 76, 78 Instead, the containment layers are connectedtogether only by the volume of sealant 74.

The insert body 90 defines a plurality of reduced sized cable ports 37 cthat extend axially through the volume of sealant 74. The volume ofsealant 74 includes cable sealing surfaces 80 that define the reducedsized cable ports 37 c. Cable sealing surfaces 80 each have a firstaxial length L1 that extends axially between the first and second axialcontainment layers 76, 78. The volume of sealant 74 also includes anexposed outer sealing surface 84 that surrounds a periphery of theinsert body 90 and that extends around the central insert axis 91. Theouter sealing surface 84 has a second axial length L2 that extendsaxially between the first and second containment layers 76, 78. Thefirst axial length L1 is longer than the second axial length L2 toprovide effective sealing about cables routed through the cable ports 37c. The first and second containment layers 76, 78 define openings 94that align with the cable ports 37 c.

When the insert body 90 is inserted within one of the main cable ports30 as shown as FIG. 6, the exposed outer sealing surface 84 contacts themain sealant arrangement 32 to form a continuous seal around theperiphery of the insert body 90. For example, the outer sealing surface84 is shown in contact with the upper sealant portion 32 a and theintermediate sealant portion 32 b of the main sealant arrangement 32.The sealant-to-sealant contact allows the outer sealing surface 84 toprovide an effective seal even though the second axial length L2 isrelatively short. Actuation of the actuation arrangement 31 causes boththe main sealant arrangement 32 and the volume of sealant 74 to bepressurized. In certain embodiments, the first and second containmentlayers 76, 78 of the insert 36 interface with the pressurizationstructures 60, 62 such that the pressurization structures 60, 62 applypressure axially through the first and second axial containment layers76, 78 to the volume of sealant 74 when the actuation arrangement 31 isactuated. In certain embodiments, portions 96 (e.g., tabs, lips,flanges, etc.) of the pressurization structures 60, 62 overlap the firstand second containment layers 76, 78 such that the insert body 90 iscaptured axially between the pressurization structures. In certainembodiments, the pressurization structures 60, 62 mate, interlock orotherwise connect with the containment layers 76, 78. For example,projections of the pressurization structures 60, 62 can fit withinreceptacles defined by the containment layers 76, 78.

Referring back to FIGS. 9-11, the insert body 90 is depicted as roundedplug and the outer sealing surface 84 forms an outer rounded sealingband between the first and second containment layers 76, 78. In certainembodiments, the insert body 90 has a wrap-around configuration forallowing a reduced sized cable to be laterally inserted into the reducedsized cable port 37 c. As shown at FIG. 9, the wrap-around configurationis provided by an axial hinge line 100 which allows the insert body 90to be moved from a closed position (see FIG. 9), through an intermediateposition (see FIG. 10) to an open configuration (see FIG. 11). To movethe insert body 90 between the open and closed configurations, portionsof the insert body 90 (e.g., half-pieces 90 a, 90 b) of the insert body90 are pivoted apart from one another about the axial hinge line 100. Incertain embodiments, latches 102 can be positioned on an opposite sideof the insert body 90 from the hinge line 100 for retaining the insertbody 90 in the closed position. The latches 102 can be coupled to theaxial containment layers 76, 78. For example, in certain embodiments,the containment layers 76, 78 can be plastic and the latches 102 can beintegrally formed with containment layers 76, 78 using a plastic moldingprocess.

To load a cable in the insert body 90, the insert body 90 is opened andthe cable is laterally inserted into one of the openings 37 c. Plugs canbe inserted into unused openings 37 c. After loading the cable into theinsert body 90, the inset body can be inserted into one of the maincable ports 30 of the main sealant arrangement 32. To insert an insertbody 90 in one of the main cable ports 30, the sealing unit 28 isde-actuated and removed from the housing 22. With the actuationarrangement 31 de-actuated and the sealing unit 28 removed from thehousing 26, the top or bottom portions of sealant 32 a, 32 c can beremoved from between the pressurization structures 60, 62 therebyallowing the insert body 90 with the cable pre-loaded therein to beinserted laterally into a desired one of the main cable ports 30. Afterthe insert body 90 has been inserted into the main cable port 30, theportions of sealant 32 a or 32 b can be reinstalled between thepressurization structures 60, 62. Thereafter, the sealing unit can beinserted into the opening 26 of the housing 22 and the actuationarrangement 31 can be actuated to pressurize the main sealantarrangement 32 and the volumes of sealant 74 correspond to any insertbody 90 mounted within any of the main cable ports 30. Upon actuation,the pressurization structures 60, 62 move axially together intoengagement with the containment layer 76, 78 of the insert body 90.

It will be appreciated that various materials can be used to form thesealant arrangement. Example materials include elastomers, includingnatural or synthetic rubbers (e.g., EPDM rubber or silicone rubber). Inother embodiments, polymeric foam (e.g., open cell or closed cell) suchas silicone foam can be used. In still other embodiments, the sealingmembers may comprise gel and/or gel combined with another material suchas an elastomer. The gel may, for example, comprise silicone gel, ureagel, urethane gel, thermoplastic gel, or any suitable gel or geloidsealing material. Gels are normally substantially incompressible whenplaced under a compressive force and normally flow and conform to theirsurroundings thereby forming sealed contact with other surfaces. Examplegels include oil-extended polymers. The polymer may, for example,comprise an elastomer, or a block copolymer having relatively hardblocks and relatively elastomeric blocks. Example copolymers includestyrene-butadiene or styrene-isoprene di-block or tri-block copolymers.In still other embodiments, the polymer of the gel may include one ormore styrene-ethylene-propylene-styrene block copolymers. Exampleextender oils used in example gels may, for example, be hydrocarbon oils(e.g., paraffinic or naphthenic oils or polypropene oils, or mixturesthereof). The sealing members can also include additives such asmoisture scavengers, antioxidants, tackifiers, pigments and/orfungicides. In certain embodiments, sealing members in accordance withthe principles of the present disclosure have ultimate elongationsgreater than 100 percent with substantially elastic deformation to anelongation of at least 100 percent. In other embodiments, sealingmembers in accordance with the principles of the present disclosure haveultimate elongations of at least 200 percent, or at least 500 percent,or at least 1000 percent. Ultimate elongation can be determined by thetesting protocol set forth at ASTM D412.

LIST OF REFERENCE NUMERALS AND CORRESPONDING FEATURES

-   20 enclosure-   22 housing-   24 end-   26 sealing unit opening-   28 sealing unit-   30 main cable ports-   31 actuation arrangement-   32 sealant arrangement-   32 a, 32 b, 32 c sealant portions-   33 a, 33 b, 33 c cable port size reducing inserts-   33 d, 33 e, 33 f cable port size reducing inserts-   35 a, 35 b actuators-   36 a, 36 b first and second lever arms-   37 a, 37 b, 37 c reduced-size cable ports-   37 d, 37 e, 37 f reduced-size cable ports-   52 a, 52 b springs-   60 inner pressurization structure-   62 outer pressurization structure-   64 a, 64 b first and second cam surfaces-   70 axial end-   72 axial end-   74 sealant-   76 axial containment layer-   78 axial containment layers.-   80 cable sealing surfaces-   84 outer sealing surface-   90 insert body-   91 central insert axis-   94 openings-   96 portions-   100 axial hinge line-   102 latches-   170 a, 170 b shafts-   190 frame-   192 optical components-   P1 non-actuated positions-   P2 actuated positions-   L1 total axial length-   L2 second axial length

The invention claimed is:
 1. A cable sealing module comprising: a modulebody having a total axial length that extends between first and secondends of the module body, the module body defining a central axis thatextends along the total axial length, the module body having a compositeconstruction including a volume of sealant at least partially containedbetween first and second axial containment layers, the first and secondaxial containment layers forming first and second axial end capsattached to the volume of sealant adjacent the first and second ends ofthe insert body, the module body defining at least three cable portsthat extends axially through volume of sealant, the volume of sealantincluding cable sealing surfaces that extends around the cable ports,the volume of sealant also including an exposed outer sealing surfacethat surrounds a periphery of the module body and extends around thecentral axis of the module body, the exposed outer sealing surface andthe cable sealing surfaces being positioned between the first and secondaxial end caps; the module body having a wrap-around configuration forallowing cables to be laterally inserted into the cable ports, thewrap-around configuration including a hinge line defined by a flexiblehinge for allowing first and second segments of the module body to bepivoted apart from one another about the hinge line, the at least threecable ports being defined at an interface between the first and secondsegments that opens when the first and second segments of the modulebody are pivoted apart from one another, each of the first and secondsegments of the module including a portion of the volume of sealant, aportion of the first axial end cap and a portion of the second axial endcap.
 2. The cable sealing module of claim 1, wherein the first andsecond segments of the module body form half-sections of the modulebody.
 3. The cable sealing module of claim 1, wherein the axial end capsinclude latches positioned opposite the hinge line for retaining thecable sealing module in a closed position.
 4. The cable sealing moduleof claim 1, wherein only the volume of sealant of the module bodyextends between the first and second axial end caps.
 5. The cablesealing module of claim 1, wherein the cable sealing surfaces have firstaxial lengths that extends between the first and second axial end caps,wherein the outer sealing surface has a second axial length that extendsbetween the first and second axial end caps, and wherein the first axiallengths are longer than the second axial length.
 6. The cable sealingmodule of claim 1, wherein the first and second axial end caps eachdefine at least three opening that align with the at least three cableports that extend through the volume of sealant.
 7. A sealing moduleadapted to be inserted into a sealing block, the sealing modulecomprising: a first body piece; and a second body piece hingeablyconnected to the first body piece; the first and second body piecesdefining a mating interface where the first and second body pieces meet,the first and second body pieces further defining therebetween at leastthree cable ports at the mating interface, the first and second bodypieces also defining a row of three openings that respectively alignwith the at least three cable ports; the sealing module having a totalaxial length that extends between first and second ends of the sealingmodule, the first and second body pieces defining a central axis thatextends along the total axial length, and the at least three cable portsextending parallel with the central axis; and the sealing module havinga composite construction including a volume of sealant at leastpartially contained between first and second axial containment layers,the first and second axial containment layers forming first and secondaxial end caps attached to the volume of sealant adjacent the first andsecond ends of the sealing module.
 8. The sealing module according toclaim 7, wherein the sealing module defines a reduced size cable portthat extends axially through the volume of sealant, the volume ofsealant including a cable sealing surface that extends around thereduced size cable port, the volume of sealant also including an exposedouter sealing surface that surrounds a periphery of the sealing moduleand extends around the central axis of the sealing module, the exposedouter sealing surface and the cable sealing surface being positionedbetween the first and second axial end caps.
 9. The sealing moduleaccording to claim 7, wherein the entire sealing module has a singleflexible hinge, the sealing module being movable to an openconfiguration in which the first and second body pieces are pivotedapart from one another about the flexible hinge.
 10. The sealing moduleaccording to claim 7, further comprising an actuation arrangement forpressurizing the sealing block, the actuation arrangement includingfirst and second pressurization structures between which the sealingblock is positioned, the actuation arrangement also including first andsecond actuators each movable between a non-actuated position and anactuated position.
 11. The sealing module according to claim 10, whereinthe first actuator includes a first lever arm for moving the firstactuator between the non-actuated and actuated positions, and the secondactuator includes a second lever arm for moving the second actuatorbetween the non-actuated and actuated positions.
 12. The sealing moduleaccording to claim 10, wherein the first actuator includes a firstspring and the second actuator includes a second spring, wherein whenthe first and second actuators are moved towards the actuated positions,the first and second actuators generate first and second sealpressurization forces that press the sealing block between the first andsecond pressurization structures.
 13. The sealing module according toclaim 12, wherein the first and second seal pressurization forces aretransferred through the first and second springs.
 14. The sealing moduleaccording to claim 8, wherein the sealing module has a wrap-aroundconfiguration for allowing a reduced sized cable to be laterallyinserted into the reduced size cable port.
 15. The sealing moduleaccording to claim 9, wherein the first and second axial end capsinclude latches positioned opposite the flexible hinge for retaining thesealing module in a closed position.
 16. The sealing module according toclaim 10, wherein the first and second axial end caps are configured tointerlock with the first and second pressurization structures of theactuation arrangement.
 17. The sealing module according to claim 10,wherein the first and second axial end caps are configured to mate withthe first and second pressurization structures of the actuationarrangement.
 18. The sealing module according to claim 10, wherein thefirst and second axial end caps define receptacles for receivingcorresponding projections provided on the first and secondpressurization structures of the actuation arrangement.